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Bismuth Aluminate / Magnesium Trisilicate

Published: July 27, 2026Updated: August 28, 2026

Bismuth Aluminate / Magnesium Trisilicate is a combination antacid and gastrointestinal protective medication used to treat indigestion, heartburn, and gastric discomfort. The magnesium trisilicate component neutralizes excess stomach acid, while bismuth aluminate forms a protective barrier on the stomach lining. This combination is typically prescribed for short-term relief of various digestive complaints.

Quick summary

A combination antacid and gastric protectant for treating heartburn, indigestion, and related digestive symptoms.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 28, 2026Editorial policy

Key facts at a glance

RxNorm
1008663
Generic
Bismuth Aluminate / Magnesium Trisilicate
Class
multi-ingredient
Brands
—
Availability
rx
Lactation
unknown
Routes
—
Forms
—
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Used to treat symptoms of dyspepsia, heartburn, acid reflux, gastritis, and functional gastrointestinal disorders. May also provide symptomatic relief in peptic ulcer disease and other conditions involving excess stomach acid or gastric irritation.

Magnesium trisilicate acts as an antacid by neutralizing hydrochloric acid in the stomach, providing rapid relief from acidity symptoms. Bismuth aluminate coats and protects the gastric mucosa, forming a barrier against acid and pepsin, which helps reduce inflammation and promotes healing of the stomach lining.

May cause temporary darkening of stool or tongue. Avoid use in patients with severe renal impairment. May interact with other medications by affecting their absorption; take other medicines 2 hours apart. Not recommended for prolonged use without medical supervision. Consult a healthcare provider before use if pregnant, breastfeeding, or taking other prescription medications.

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 28, 2026. · Read our editorial policy